Blob: stream() method

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since January 2020.

Note: This feature is available in Web Workers.

The stream() method of the Blob interface returns a ReadableStream which upon reading returns the data contained within the Blob.

Syntax

js
stream()

Parameters

None.

Return value

A ReadableStream which, upon reading, returns the contents of the Blob.

Usage notes

With stream() and the returned ReadableStream, you gain several interesting capabilities:

  • Call getReader() on the returned stream to get an object to use to read the data from the blob using methods such as the ReadableStreamDefaultReader interface's read() method.
  • Call the returned stream's pipeTo() method to pipe the blob's data to a writable stream.
  • Call the returned stream's tee() method to tee the readable stream. This returns an array containing two new ReadableStream objects, each of which returns the contents of the Blob.
  • Call the returned stream's pipeThrough() method to pipe the stream through a TransformStream or any other readable and writable pair.

Specifications

Specification
File API
# dom-blob-stream

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobileserver
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
Deno
Node.js
stream()

Legend

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Full support
Full support

See also